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- Hyperbridge exploit floods Ethereum with fake DOT, triggering rapid price collapse
- Attackers mint one billion tokens, overwhelming liquidity and shaking market confidence
- Exchanges halt activity as developers scramble to contain cross-chain breach
The market has been thrown into turmoil by a sudden attack on the Hyperbridge protocol, in which an attacker minted 1 billion counterfeit DOT tokens on Ethereum. This event occurred very rapidly, as unauthorized properties entered the market, causing a sharp price decrease. The scale of the breach prompted an immediate reaction from market participants.
CertiK, a security firm in the blockchain industry, claimed that the breach was caused by a vulnerability in Hyperbridge’s gateway contract. This vulnerability enabled the attacker to pass verification checks and interfere with internal processes. This allowed the attacker to gain administrative control of the bridged token contract on Ethereum.
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As a result, the hacker printed a large number of unsecured DOT coins and began selling them to the market. This move introduced strong downward pressure, as liquidity was unable to accommodate the sudden inflow. In a few minutes, the token price dropped to fractions of a cent, down from some 1.22.
Also, the analytics tool Onchain Lens detected suspicious contract activity related to the exploit. The platform indicated that the contract’s ownership had been transferred to a rogue address before the minting process began. This sequence allowed the attacker to create and liquidate without any resistance.
Fake DOT flood overwhelms liquidity as Ethereum market reacts
The creation and sale of fake tokens were rapid, saturating liquidity in Ethereum markets. This led to heightened panic selling as traders hurried to sell out. It is said that the attacker had made approximately 237,000 in profit before leaving the market.
Nevertheless, the effects were confined to representations of Ethereum-based DOTs associated with Hyperbridge. Polkadot subsequently confirmed that its native network remained uninterrupted. This explanation served to keep larger issues of systemic risk within the ecosystem.
Exchanges act, and developers halt bridge operations
In the meantime, Hyperbridge went offline as developers worked to fix the vulnerability and take remedial action. Users with impacted tokens are temporarily restricted while technical reviews are underway. This stalling is an indication of an attempt to protect against additional unauthorized action.
The incident weakened market sentiment, as DOT dropped by approximately 4% amid cautious trading. Concurrently, some of the largest South Korean exchanges, Upbit and Bithumb, had to freeze deposits and withdrawals. All these measures were meant to secure users in a time of uncertainty.
The incident underscores the continuous vulnerabilities in cross-chain infrastructure, especially those that rely on multifaceted smart contract interactions. Although Polkadot was not harmed, the event highlights the importance of stronger security measures in cross-blockchain settings. The Hyperbridge exploit demonstrates how quickly vulnerabilities can cause markets to crash if safeguards are not in place. Enhancing cross-chain security is critical as blockchain systems continue to grow.
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